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How to Convert Landscape Video to Portrait (9:16) — The Complete Guide

Why Convert Landscape to Portrait?

Social media platforms like TikTok, Instagram Reels, and YouTube Shorts all prioritize vertical (9:16) video. Portrait videos take up the full screen on mobile devices, leading to higher engagement, longer watch times, and better algorithm performance. If you have existing landscape footage — sports highlights, vlogs, tutorials, concerts — converting it to portrait lets you repurpose content without re-shooting.

Method 1 — Use Portrait AI (Automatic)

The fastest way to convert landscape to portrait. Portrait AI uses computer vision to track the action in your video and automatically frame the perfect crop.

  1. Go to Portrait AI and upload your landscape video (MP4, MOV, or MKV)
  2. Choose your output format: 9:16 (Reels/TikTok), 4:5 (Instagram Feed), or 1:1 (Square)
  3. AI processes your video — tracking subjects, smoothing camera movement
  4. Download your portrait video, ready to share

Best for: Anyone who wants fast, automatic conversion with intelligent subject tracking. No editing skills needed.

Try it yourself

Upload a landscape video and convert to portrait in under 2 minutes. AI handles the reframing — free, no watermarks.

Convert a Video Free

Method 2 — Manual Crop with CapCut or Premiere

You can manually crop your video in any video editor. In CapCut (free) or Adobe Premiere Pro:

  1. Create a new project with 9:16 aspect ratio (1080x1920)
  2. Import your landscape video
  3. Scale and position the video to frame the content you want
  4. Add keyframes if the subject moves across the frame
  5. Export at 1080x1920

Downsides: Time-consuming, especially for longer videos. Requires manual keyframing if the subject moves. No automatic subject tracking.

Method 3 — FFmpeg Command Line

For developers and power users, FFmpeg can crop videos from the command line:

ffmpeg -i input.mp4 -vf "crop=608:1080:656:0" -c:a copy output_portrait.mp4

This crops a 608x1080 window (9:16) from the center of a 1920x1080 video. The limitation: the crop position is static. If the action moves across the frame, the crop won't follow it.

Which Aspect Ratio Should You Use?

9:16 — TikTok, Instagram Reels, YouTube Shorts, Snapchat. Full-screen vertical. The most common portrait format.

4:5 — Instagram Feed posts. Taller than square but not full portrait. Good for feed visibility.

1:1 — Square. Works on Twitter/X, LinkedIn, and Facebook. Universal but doesn't maximize screen space on mobile.

Tips for Better Portrait Videos

  • Higher resolution source footage gives you more room to crop without losing quality
  • Keep important subjects toward the center of your landscape video for easier conversion
  • Shorter clips (15-60 seconds) perform best on social media platforms
  • Add captions — most social media videos are watched without sound
  • Use the first 3 seconds to hook viewers — front-load the action

Ready to Convert Your First Video?

Upload a landscape video and get a portrait version in under 2 minutes — AI handles the framing.

Try Portrait AI Free